Arctic Cat Sno Pro 500 Operator's Manual page 63

14. Lubricate the drive clutch bolt with a light film of
oil; then place the drive clutch into position on the
crankshaft and secure with the cap screw and lock
washer. Tighten to specifications.
NOTE: Before installing the drive clutch, be sure
to wipe both the crankshaft taper and clutch
mounting taper clean using a clean towel.
CAUTION
When installing the drive clutch, do not tighten the
clutch cap screw with any kind of impact tool Tighten
cap screw using a hand torque wrench only. Failure to
do so could result in stationary sheave damage.
15. Install the driven pulley (with inner O-ring), key,
and stub shaft. Secure with a cap screw and
washer. Tighten to specifications.
16. Check drive clutch/driven pulley alignment.
17. Using Drive Belt Deflection Tool (p/n 0644-424),
install the drive belt so the part number can be
read; then roll the belt back and forth while closing
the sheaves allowing the sheaves to fully close.
Verify proper drive belt deflection.
18. Apply a thin coat of high-temperature silicone
sealant to each exhaust port; then install the
exhaust gaskets.
19. Apply a thin coat of high-temperature silicone
sealant to the mating surfaces of the exhaust mani-
fold; then install the exhaust manifold and secure
with flange nuts. Tighten the nuts in a crisscross
pattern to 17 ft-lb.
20. Install the resonator and secure it to the chassis
with the springs and hairpin clip.
IO034A
21. Install the expansion chamber and secure with the
springs; then install the link to the upper spar with
cap screw and tighten to 96 in.-lb.
NOTE: When installing the exhaust manifold
springs, the long hook portion of the spring must
be attached to the exhaust manifold or premature
spring failure will result.
22. With the front of the snowmobile elevated, add
coolant until coolant is visible at the filler neck.
Start the engine and run the engine up to operating
temperature and inspect for any signs of coolant or
gas leaks; then turn the engine off and add coolant
if necessary.
23. Test drive or run the snowmobile and recheck the
coolant level after 5-6 minutes. Tighten the drive
clutch cap screw to specifications.
If the engine had a major overhaul or if any major com-
ponent was replaced, proper engine break-in proce-
743-067B
dures must be followed. If the proper engine break-in
procedures are not followed, severe engine damage
may result.
CAUTION
IO033A
IO032A
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